Most multiply-charged anions have less-charged versions stable in more acidic solutions, including the chromate ion CrO4--. However, most such anions are partially acidified simply by adding one or more hydrogen atoms to them, such as HCO3-, HPO4-- and H2PO4-, HSO4-, and so on. The partially acidified chromate ion is different in this respect, where two of the basic Cr2O4-- ions combine to form a Cr2O7-- ion rather than two HCrO4- ions implied by the older name for the dichromate ion "bichromate." Who, when, and how was this anomalous behavior discovered and what chemical consequences does it have?
I am also looking for references for more detailed info. These must be provided for "best answer."
2007-08-08
17:55:29
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4 answers
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asked by
devilsadvocate1728
6
in
Science & Mathematics
➔ Chemistry